Question

9.
A solid sphere of radius R is placed on smooth horizontal surface. A horizontal force F is applied at height h from the lowest point. For the maximum
acceleration of centre of mass which is correct?
(1) h = R
(2) n = 20
(3) h=0
(4) No relation between h and R​

Answer 1

Answer:

according to the question the sphere was is in rest therefore the net torque=0

I×h - F×R =0

MR^2 ×h =(2/5 )MR^2 ×R

h/R= 2/5

this is the required ratio...

here R= radius of the sphere

I= moment of inertia applied to the sphere

F= moment of inertia about diameter